From aa9d25397890a4e7fe3c32edb3c6e971ea874405 Mon Sep 17 00:00:00 2001
From: ccurme <chester.curme@gmail.com>
Date: Fri, 17 Jan 2025 13:53:21 -0500
Subject: [PATCH] docs: highlight lines in troubleshooting doc (#3084)
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![Screenshot 2025-01-17 at 1 44
07 PM](https://github.com/user-attachments/assets/b7009c77-cb2e-43e0-92a7-3978884b7f3e)
---
 .../troubleshooting/errors/INVALID_CONCURRENT_GRAPH_UPDATE.md | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/docs/docs/troubleshooting/errors/INVALID_CONCURRENT_GRAPH_UPDATE.md b/docs/docs/troubleshooting/errors/INVALID_CONCURRENT_GRAPH_UPDATE.md
index a02094578..c87a1ce49 100644
--- a/docs/docs/troubleshooting/errors/INVALID_CONCURRENT_GRAPH_UPDATE.md
+++ b/docs/docs/troubleshooting/errors/INVALID_CONCURRENT_GRAPH_UPDATE.md
@@ -6,7 +6,7 @@ support it.
 One way this can occur is if you are using a [fanout](https://langchain-ai.github.io/langgraph/how-tos/map-reduce/)
 or other parallel execution in your graph and you have defined a graph like this:
 
-```python
+```python hl_lines="2"
 class State(TypedDict):
     some_key: str
 
@@ -31,7 +31,7 @@ there is uncertainty around how to update the internal state.
 
 To get around this, you can define a reducer that combines multiple values:
 
-```python
+```python hl_lines="5-6"
 import operator
 from typing import Annotated